Base foe



C. J. TRAVERS.

BASE FOR CHAIRS, (SLC.

Llc/mow man ocT.1,1919

Patented Mar. 1G, 1920.

IIIIIII IHHINH UNITED srains rATnNr onirica;

CHARLES J. TRAVERS, OF PGRT VJASHINGTON, WISCQNSIN.

Basu non ciiAiRs, ac,

Specletion 0f Letters Patent n Patented Mai'. 1.6, 1920.

Application filed October 1, i919. Serial No. 327,724.

` primarily intended as a chair-base.`

The principal objects of the invention are to produce a base for thepurposes mentioned, which while comparatively inexpensive and simple tomanufacture, yet, by reason otite peculiar novel construction, ispossessed ket very great strength and durability and is capable ofperforming its lfunction of a base and 'or sustaining excessive WeightWithout danger ot becoming loosened at its joints and lconsequentlyspreading and collapsing.

"With these and other objects in view, the

invention consists of a chair or other base v formed of Wood, the inner.ends of the legs ot which are provided with a. series ot pret--.erabl-y .reduced parallel spacedapart ten-V fons arranged in verticalseries andftorining intermediate inortises, the inner walls ot which are.at right` angles to ,the vertical sides'oi the tenons, and inintermediate conn ynesting filler-blocks, substantially trianguv 'fla-r.in cross-section and having alternating .oneof the legs; Y f

`Fig.` 3, is a similar view ot one o'ltlie contenons and mortises, theformer being of such shape as to enter between the tenons of the legsand `occupy lthe niortises thereof,v

the yopposite sides of said Eller-blocks hav- :ing external shouldersoverlapped or engaged -by corresponding shoulders producedat'tlieopposite sides of the legs, caused by a ,lateralreduction of thetenons of the latter, `whereby a Withdrawal of said blocks issuccessfully resistedby the legs.

. Referring to the-drawing: Y

Figure 1-is a top-plan view oit a baseL constructed in accordance withmy invention, the outer ends of the legs being broken away;

` llig. 2, is a detail in inner end elevation of necting iller-blocks;

Fig. 4, is atop-plan vieiv ot the inner porf tion of one ofthe legs;`and Y Fig. 5, is a detail inplan of one ott thecon- ,ncctingfiller-blocks.;

Similar numerals ont reierenc'e indicate similar partsy in all thefigures of the draiving. i

'The legs, l, may be oi? any style or design desired, and each isprovided at its inner end with a vertical series of spacedapart.longitudinally disposed tenons, 2, of uniform thickness, andcoinbining'to produce intermediate transverse ,nortises 3. rlheends ofthese tenons are squared or at a right angle to the leg on which theyare vformed, as indicated by thedotted lines a, (Fig. 1,) and as shownby iull lines, Fig. 4i, the sides of said tenons arepreferably parallelWith each other and also with the lsides ot.'

i the legs on which they are formed.

The tenons are somewhat reduced laterally, as compared ivith the legs onwhich they are formed, so that there is, as a result of such reductions,formed at the opposite sides oi' each leg, at its juncture with thetenons, right ysingularly disposed vertical stop-shoulders al. t Theconnecting filler-blocks, (shown in detail in Figs 3 and 5,) are of suchshape in cross-section as Willadapt them to fity snugly between theverticalk sides of the tenons of tvvo adjacent legs and in advance of`the'shoulders 4L thereof. To this end, the

with a vertical' shoulder, 6, corresponding f 4with and adapted to .beoverlapped or engaged by the shoulder, 4, of the adjacent legsl; sothat, as Will be obvious, the parts having been assembled, it ivill beimpossible `for the blocks to berenioved without a pre-The-tenonsot.thelega `being .formed as l' shown, tor the purpose otsimplitying the operations by which they are produced, do not interlaceor connect, but simply nieet at their inner corners, as indicated bydotted lines in F ig. l. For connection ot the legs, the connectingliller-blocks are depended rpon, each block, as will be seen,overlapping and occupying substantially ono-halt oi the area of the tivoadjacent legs. The tenons ot the connecting iller-blocls are at varianceer staggered with relation to the tenons ot the legs, so that `when thelegs and blocks are assembled, the upper and lower surfaces oi theseparts are flush.

lt will be understood thatJ there may be employed upper and lowermetal-plates, ordinary screws being inse ted through the plates and intothe tops and bottoms oi the legs, for the purpose ot preventing thelatter `trom spreading under the Weight or load. As is usual, saidplates may or may not support a metal hub tor the purpose olfaccommodating the supporting -standard rising from the base and adaptedto support a chair-seat, costunier, table, or other article.

The tenons and other portions oi the legs and blocks, the surfaces ofwhich moet, are glued together, at'ter which the base, as thus formed,and previous to the application of the upper and lower plates, `is boredcentrally, as at 9, such bore being i'ormed'pa-rtly in the ends of thetenons ot the legs and partly in the tenons et the blocks. Itpreferred,however, the boring operation may be omitted, so that therewill be left a bore octagonal in cross-section, Jformed `by the meetingor inner ends of the tenons and legs. Y

From the foregoing description in connection with. the accompanyingdrawing, it will be apparent that I have produced a chair-base oi' neatdesign and one possessing very great strength and tendency to resistspreading under all ordinary circumstances and conditions, and whereinthe principle oi interlacing the connecting-blocks with the legs iscarried out with as little expense'in `the operation or' manutacture aspossible, the saw-cuts being all. straight and there being toi-ined nosmall shoulders and recesses tor the purpose oi" fitting the parts andrerunring additional time-consuming opera- `fit-ions. rMoreoveiii', thesides of the tenons oi' the legs being parallel Vto the sides of thelegs themselves and not made Wider for the purpose of interlacing withadjacent legs, results in a saving` ot material in forming said legs; sothat, as will be obvious, While my base is capableoiv sustaining amaxi-v mum load without danger of spreading and possesses unusualdurability, yet it iscapable of being manui'actured at a reasonablecost, there being unnecessary in such manu-` facture of anygexcess'oioperations.

it u'ill be noted that the grain of the Wood Yfrom which the connectingfiller-blocks are formed disposed .lengthwise the block, which, as willbe apparent, disposes said grain at an angle to the grain of the Woodfrom which the legs are formed, sothat by such disposition.. thegreatest strength is secured. It' desired, doivel-pins or screws may beinserted through the interlacing tenons or' the iiller-blocks and legs,but it is thought merely gluing them together will afford ample securityin connection with the top and bottom plates generally used.

Having kdescribed my intention, what l claim is:

l. A chair or other base, comprising a series ot legs having at theirinner ends inwardly disposed tenons, laterally reduced to iorm oppositevertical shoulders at the juncrures oi2 the tenons and legs and spacedapart to produce intermediate transverse inortises, and connectingfiller-blocks arranged between said legs, said iillerblocls having theiropposite outer faces overlapped by the vertical shoulders of the legsand having their inner sides` provided With a series oit tenons spacedapart to form intermediate mortises, said tenons being staggered withrelation to the tenons of the legs and oiferlapping the same by enteringthe mortises thereof.

2. A chair or other base, comprising a series of legs having at theirinner ends inwardly disposed tenons, and connecting filler-blocksarranged lbetween said legs, said iller-blocks having their inner`'faces proided With a series of tenons spaced-apart to formintermediate mortises, said tenons being staggered with relation to thetenons of the legs, the sides of the tenons of tWo adjacent blocksmeeting and abutting in the inortises ot the legs in which they arelocated andparalleling each other.

3. A chair or other base, comprising a series of legshaving at theirinner ends inwardly disposed tenons and at the juncture el the same withthe legs provided with vertical shoulders, and connecting filler-blocksarranged between said legs and having their opposite sideedgesoverlapped by said shoulders of the legs, said filler-blocks havingtheir inner faces provided with a series of tenons and intermediatemortises, staggered with relation to those or' the legs7 said tenons ofthe filler-blocks being laterally disposed so as to engage the inortisesoi? the legs.

ll. A. chair or other base, comprising a series of legs having at theirinner ends inwardly disposed tenons and at the juncture of the same withthe legs provided with vertical shoulders, and connecting fillerbl'oclrsarranged `between said legs and having their opposite side-edges engagedby said shoulders of the legs, saidrller-blocks having their inner 'acesprovided with a series iio of tenons staggered with relation to 'thoseot' the legs and adapted to enter the inortises ol. said legsv andhaving their edges ineeting and abutting and disposed parallel withinsaid inortises. y

5. il chair or other base, comprising a series of legs having at theirinner ends inwardly disposed tenons and intermediate mortises l'lavinginner transverse walls, and inter'- niediate connecting liller-blocls7triangular in cross-section and having their walls7 coinciding with andabutting against the op posite sides of the tenons, and provided attheir inner faces with opposite tenons having substantially triangularends adapted to enter and abut in the inortises of the legs and toparallel each other and the wall ol' said niortises.

6. A chair or other )Oase7 comprising a series of `leO's havingat theirinner ends inwardly disposed tenons and intermediate inortises havinginner transverse walls7 and intermediate connecting ller-lolocks,triangular in cross-section and having their walls coinciding with andabutting against-the opposed tenons, and intermediate connectingiller-blocls tenoned atvariance with those of the legs and interlacingtherewith7 said blocks having the grain of the wood roin which they areinade disposed at an anglek to the grain oi' the wood of said legs.

S. A chair or other base, comprising a series of legs provided at 'theirinner ends with inwardly disposed tenons, and connecting iller-lolocksarranged between said legs7 said blocks having their inner facesprovided with a series of tenons spaced apart to forni intermediateinortises, said tenons heilig staggered with relation to the tenons ofthe legs.

CHARLESy J. TRAVERS@

